Home / 877,761,990.63-1,211,323,266.72-481,283,975.52

Finding the Fourth Proportional to 877,761,990.63, 1,211,323,266.72 and 481,283,975.52

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Solution

The fourth proportional to 877,761,990.63, 1,211,323,266.72 and 481,283,975.52 is: 664,178,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,761,990.63 : 1,211,323,266.72 = 481,283,975.52 : x
  2. Step 2: Convert to fraction form
    877,761,990.63/1,211,323,266.72 = 481,283,975.52/x
  3. Step 3: Cross multiply
    877,761,990.63x = 1,211,323,266.72 × 481,283,975.52
  4. Step 4: Simplify right side
    877,761,990.63x = 582,990,477,446,874,880
  5. Step 5: Solve for x
    x = 582,990,477,446,874,880/877,761,990.63
  6. Step 6: Final answer
    x = 664,178,312.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.